Adding availability to your event-types through the 'My availability' page is super simple.
As seen in the video above, simply navigate to the 'My availability' page and click on one of the time-slots you want to change. Don't worry; if you want to change multiple you can do that by clicking on one of the time slots and then selecting the dates from the pop-up window.
Input the time that you'd like to add or change and click 'Apply'. You can do this for any event type, just select whichever one you'd like from the drop-down box.